angle of eccentricity

例句：

1. 1. The angle of the roof is crucial for the stability of the structure.
   屋顶的角度对于结构的稳定性至关重要。
2. 2. The engineer measured the angle of the beam to ensure it was straight.
   工程师测量了梁的角度以确保它直的。
3. 3. The angle of the blade affects its efficiency in cutting wood.
   刀片的角度影响其切割木材的效率。